Home / 3,112.96-4,671.72-1,652.40

Finding the Fourth Proportional to 3,112.96, 4,671.72 and 1,652.40

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Solution

The fourth proportional to 3,112.96, 4,671.72 and 1,652.40 is: 2,479.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.96 : 4,671.72 = 1,652.40 : x
  2. Step 2: Convert to fraction form
    3,112.96/4,671.72 = 1,652.40/x
  3. Step 3: Cross multiply
    3,112.96x = 4,671.72 × 1,652.40
  4. Step 4: Simplify right side
    3,112.96x = 7,719,550.13
  5. Step 5: Solve for x
    x = 7,719,550.13/3,112.96
  6. Step 6: Final answer
    x = 2,479.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.